Mason's experiencing Persecutory delusions as Mason had the impression that people were talking about him and that his neighbors were conspiring against him in order to evict him from his home.
When someone has persecutory delusions, they believe others are trying to harm them despite evidence to the contrary.
It's a form of paranoid thinking that can accompany a variety of mental conditions.
Thus, Persecutory delusions is the brain disorder faced by Mason.
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https://brainly.com/question/15371553